- Strengthen scientific cooperation between the two units in particular and between the two countries in general in basic and applied research.
- Identify insect fungi capable of killing plant pests to develop biological pesticides in agriculture.

As a result, the study has obtained samples of the grasshopper Oxya chinensis damaging rice with signs of fungal infection in Huong Toan ward, Huong Tra town, Thua Thien Hue province. A total of 37 fungal strains were isolated on the PDA plate. Of these, 12 strains of fungi (NL1-NL12) with different morphologis were selected for further insecticidal tests. The insecticidal activity against the grasshopper Oxya chinensis was evaluated, thereby identifying three strains NL3, NL4, and NL12 with the highest insecticidal effect on young grasshoppers with mortality rates of 87.73%, 89,81%, and 100% after 15 days of testing, respectively. Identified fungal strains with high activity are Aspergillus tamarii, Beauveria bassiana, and Metarhizium anisopliae, respectively. A large amount of fermentation was carried out and the chemical composition of Aspergillus tamarii NL3 was investigated, thereby isolating and determining the chemical structures of 5 isolated compounds including griseofulvin (1), isogriseofulvin (2), cytochalasin J (3), solasonine (4), and solamargine (5).

Three strains of fungi with strong insecticidal activity (Aspergillus tamarii, Beauveria bassiana, and Metarhizium anisopliae) have been isolated and identified from samples of grasshoppers damaging rice collected in Thua Thien Hue;
Five compounds, griseofulvin (1), isogriseofulvin (2), cytochalasin J (3), solasonine (4), and solamargine (5) were isolated and determined from Aspergillus tamarii. Among them, compounds 1-4 were isolated from the genus Aspergillus for the first time and compound 5 was isolated for the first time from Aspergillus tamarii species.

- Publications:
1, Le Canh Viet Cuong, Bakeo Souvannalath, Tran Phuong Ha, Le Quynh Lien, Vu Thi Thanh Tam, Pham Thi Thuy Hoai, Hoang Le Tuan Anh, Ton That Huu Dat (2022). Isolation and screening of entomopathogenic fungi against the grasshopper Oxya chinensis (Orthoptera: Acrididae) from rice fields in Thua Thien Hue, Vietnam. Biodiversitas, 23, 9, 4906-4911.
2, Dat Ton That Huu, Ha Tran Phuong, Phan Thi Diem Tran, Bakeo Souvannalath, Hieu Le Trung, Duc Viet Ho and Cuong Le Canh Viet (2022). Secondary metabolites from the grasshopper derived entomopathogenic fungus Aspergillus tamarii NL3 and Their biological activities. Natural Product Communications, 17, 12, 1-5 (doi: 10.1177/1934578X221141548).
- Training: Contributing to training student Ha Thi Thanh Truc (Chemistry Pedagogy) to conduct the thesis "Survey on chemical composition of Aspergillus sp. isolated from insect pests of rice.